Home / 1,728.32-2,589.08-1,141.54

Finding the Fourth Proportional to 1,728.32, 2,589.08 and 1,141.54

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Solution

The fourth proportional to 1,728.32, 2,589.08 and 1,141.54 is: 1,710.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728.32 : 2,589.08 = 1,141.54 : x
  2. Step 2: Convert to fraction form
    1,728.32/2,589.08 = 1,141.54/x
  3. Step 3: Cross multiply
    1,728.32x = 2,589.08 × 1,141.54
  4. Step 4: Simplify right side
    1,728.32x = 2,955,526.20
  5. Step 5: Solve for x
    x = 2,955,526.20/1,728.32
  6. Step 6: Final answer
    x = 1,710.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.